Answer:
Muscle tissue originate from mesoderm (one of the three germ layers). Muscle cell are made up of fibers called myofibrils.
Explanation:
Bottom feeders are aquatic animals that feed on the bottom of a body of a water. Crayfish is the bottom feeder. It is not active swimmer, it feed on stationary or slow pray, so it does not have such a streamlined body necessary to reduce drag during swimming. Its mouth is located on the underside of their heads and that way mouth is closer to the bottom where their food is.
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Answer:
#IN GIRLS
* adolsence
* menstruation
#IN BOYS
* penis strts turning big
*beard starts coming of face
Such unequal distribution of resources was commonly related to land for agriculture, necessary for population growth.
This means that the fertilized egg has implanted in the fallopian tube and is growing outside of the uterus. An ectopic pregnancy occurs when the fertilized egg settles and grows in any location other than the inner lining of the uterus. Most of these cases occurs in the Fallopian tube (tubal pregnancy). If untreated ectopic pregnancy can be a medical emergency.
